1. learn
2. dirty
3.worn
4. sore
5. thirst
6. burn
7. record
8. cure
9. board
10. course
11.worth
12. early
13. return
14. pure
15. world
16. search
17. worse
18. thirteen
19. sport
20. current
21. curious
22. thorough
23. earnest
24. portion
25. foreign